These worksheets are an excellent resource for reinforcing number knowledge from 1 to 20! Designed for first and second-graders, these 20 worksheets can be used as both shared or independent activities. They cover a wide range of skills including recognizing and writing numbers, representing them in ten frames or tens blocks, understanding odd and even numbers, shapes, addition, subtraction, fun number facts, counting in twos, ordering numbers, and more!For durability and repeated use, consider